Results 51 to 60 of about 4,078 (224)

Influence of temperature and cumulative strain on microstructure and mechanical properties of multi-directional forged Mg-Gd-Y-Zn-Zr alloy

Journal of Materials Research and Technology
The multidirectional forging (MDF) experiments of Mg-Gd-Y-Zn-Zr alloy were performed. The effects of temperature and cumulative strain on microstructure and mechanical properties of multi-directional forged Mg-Gd-Y-Zn-Zr alloy were studied.
Xiangsheng Xia, Yiwen Guo, Ming Li, Shiqing Gao, Lin Xiang   +4 more
doaj   +1 more source

Microstructure, texture evolution and mechanical properties of a large-scale multidirectionally forged Mg-Gd-Y-Zn-Zr-Ag alloy

Journal of Materials Research and Technology, 2023
A large-scale Mg-6.2Gd-3.7Y-0.9Zn-0.3Zr-0.3Ag (wt.%) magnesium component with the dimension of 480 × 250 × 160 mm3 was fabricated via direct-chill (DC) casting, homogenization and multidirectional forging (MDF).
Junkai Wang, Chuming Liu, Shunong Jiang, Guang Zeng   +3 more
doaj   +1 more source

On account of doomsday

American Ethnologist, EarlyView.
Abstract In recent years, Berlin has emerged as an epicenter of climate activism in Germany. There, a range of groups have mobilized in opposition to the role of the German state and the EU in accelerating the climate crisis. Many activists now see conventional political responses as exhausted and have turned to increasingly radical forms of civil ...
Max Jack
wiley   +1 more source

Brokers, Collaborators and Knowledge Translators: Expanding the Role of Research Assistants in Geographic Research

Asia Pacific Viewpoint, EarlyView.
ABSTRACT While ‘local’ research assistants (RA) often play a key role in knowledge production in fieldwork‐based disciplines like geography, their role and agency often remain silenced. This paper brings together scholarship in feminist geography and critical development studies to reposition RAs as brokers, collaborators, and knowledge translators.
Zali Fung
wiley   +1 more source

Materials for high vacuum technology, an overview [PDF]

, 2006
In modern accelerators stringent requirements are placed on materials of vacuum systems. Their physical and mechanical properties, machinability, weldability or brazeability are key parameters. Adequate strength, ductility, magnetic properties at room as
Sgobba, Stefano
core   +1 more source

International Solidarity: Principles, Challenges, and Pathways to a Shared Future

Sociology Compass, Volume 20, Issue 4, April 2026.
ABSTRACT This article examines the concept of international solidarity, emphasizing its significance in both historical and contemporary contexts. Notable movements such as Palestine solidarity movement, the global workers' movement and the Anti‐Apartheid Movement illustrate how individuals and communities across borders unite to challenge injustice ...
Simin Fadaee
wiley   +1 more source

Spatially resolved acoustic spectroscopy for rapid imaging of material microstructure and grain orientation [PDF]

, 2014
Measuring the grain structure of aerospace materials is very important to understand their mechanical properties and in-service performance. Spatially resolved acoustic spectroscopy is an acoustic technique utilizing surface acoustic waves to map the ...
Bourell D L, Clay K, Farnell G W ed Mason W P, Gifkins R C, Jethro Coulson, Matt Clark, Michael G Somekh, Randle V, Richard J Smith, Scruby C B, Steve D Sharples, Vander Voort G F, Wenqi Li   +12 more
core   +2 more sources

High creep strength, dispersion-strengthened iron aluminide prepared by multidirectional high-strain forging

Acta Materialia, 2010
A high-temperature forging technique was used to impart very high-strain to a cast iron aluminide containing a coarse distribution of borides. The resulting material retains a coarse grain size with a refined dispersion of fine boride particles. This material shows reasonable room temperature ductility with excellent creep strength up to temperatures ...
Morris, David G., Muñoz-Morris, Mª Antonia   +1 more
openaire   +2 more sources

Wearable and Implantable Devices for Continuous Monitoring of Muscle Physiological Activity: A Review

Advanced Science, Volume 13, Issue 15, 13 March 2026.
Recent advances in materials and device engineering enable continuous, real‐time monitoring of muscle activity via wearable and implantable systems. This review critically summarizes emerging technologies for tracking electrophysiological, biomechanical, and oxygenation signals, outlines fundamental principles, and highlights key challenges and ...
Zhengwei Liao, Ata Golparvar, Mohammad Javad Bathaei, Filipe Arroyo Cardoso, Clementine M. Boutry   +4 more
wiley   +1 more source

Effect of Pass Strain on Grain Refinement in 7475 Al Alloy during Hot Multidirectional Forging

MATERIALS TRANSACTIONS, 2004
Effect of pass strain (Δɛ) on grain refinement was studied in multidirectional forging (MDF) of a coarse-grained 7475 Al alloy at 490°C under a strain rate of 3 ×10⁻⁴s⁻¹. Results finally in formation of a finer grained structure with an average size of around 7.5 μm at strains of above 3.5, while, the processing with Δɛ = 0.4 develops a slightly ...
Sitdikov O., Sakai T., Goloborodko A., Miura H., Kaibyshev R.   +4 more
openaire   +4 more sources